
(map (lambda (l)
       (sort l <?))
     '((a b d c)
       (#\a #\b #\d #\c)
       ("a" "b" "d" "c")
       (0 1 3 2)))			

;; => ((a b c d) (#\a #\b #\c #\d) ("a" "b" "c" "d") (0 1 2 3))
